DTC P3187-751 Short to GND in Rear Guard Sensor 1 Connection; DTC P3188-752 Open or Short to B+ in Rear Guard Sensor 1 Connection: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The HV control ECU monitors the connection status of the circuit breaker sensor RR RH signal (collision signal) line. If the ECU detects a malfunction, it will alert the driver.
DTC DETECTION CONDITION - TROUBLE AREA CHART
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3187 | 751 | GND short in rear circuit breaker sensor (RH) circuit |
|
| P3188 | 752 | Open or +B short in circuit breaker sensor (RH) circuit |
|